Performance of distributed DC power system using quasi Z-Source Inverter based DC/DC converters

Siwakoti, YP; Town, GE

Performance of distributed DC power system using quasi Z-Source Inverter based DC/DC converters

Siwakoti, YP

Town, GE

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Publication Type:: Conference Proceeding
Citation:: Conference Proceedings - IEEE Applied Power Electronics Conference and Exposition - APEC, 2013, pp. 1946 - 1953
Issue Date:: 2013-07-01

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Field	Value	Language
dc.contributor.author	Siwakoti, YP https://orcid.org/0000-0002-3869-412X	en_US
dc.contributor.author	Town, GE	en_US
dc.date.issued	2013-07-01	en_US
dc.identifier.citation	Conference Proceedings - IEEE Applied Power Electronics Conference and Exposition - APEC, 2013, pp. 1946 - 1953	en_US
dc.identifier.isbn	9781467343541	en_US
dc.identifier.uri	http://hdl.handle.net/10453/120151
dc.description.abstract	DC microgrids for power combining and distribution are of interest in many applications due to their high efficiency, relatively low cost of installation and operation, freedom from harmonic and reactive power and stability. The quasi Z-Source Inverter (q-ZSI) is a particularly promising circuit for DC Distributed Power System (DPS) because of its unique buck-boost characteristics, high power handling capability and inbuilt fault tolerance. The buck-boost capability reduces the number of power conversion stages required and provides ride-through capability during voltage sag and swells from the grid. However, the performance of q-ZSI in DC DPS under varying sources and load conditions has not previously been investigated. We present analysis and simulation of 400V DC DPS by placing q-ZSI converters in parallel under widely varying input and output conditions. An automatic master-slave control strategy was used to share the load current among parallel converters. The results verify the benefit of q-ZSI converters in DC DPS and show that DC DPS can have good transient and steady state response and is capable of maintaining stiff DC voltage at the common bus with minimal interaction. © 2013 IEEE.	en_US
dc.relation.ispartof	Conference Proceedings - IEEE Applied Power Electronics Conference and Exposition - APEC	en_US
dc.relation.isbasedon	10.1109/APEC.2013.6520561	en_US
dc.rights	info:eu-repo/semantics/closedAccess
dc.title	Performance of distributed DC power system using quasi Z-Source Inverter based DC/DC converters	en_US
dc.type	Conference Proceeding
utslib.for	0906 Electrical and Electronic Engineering	en_US
pubs.embargo.period	Not known	en_US
pubs.organisational-group	/University of Technology Sydney
pubs.organisational-group	/University of Technology Sydney/Faculty of Engineering and Information Technology
pubs.organisational-group	/University of Technology Sydney/Faculty of Engineering and Information Technology/School of Electrical and Data Engineering
utslib.copyright.status	closed_access	*
pubs.publication-status	Published	en_US

Abstract:

DC microgrids for power combining and distribution are of interest in many applications due to their high efficiency, relatively low cost of installation and operation, freedom from harmonic and reactive power and stability. The quasi Z-Source Inverter (q-ZSI) is a particularly promising circuit for DC Distributed Power System (DPS) because of its unique buck-boost characteristics, high power handling capability and inbuilt fault tolerance. The buck-boost capability reduces the number of power conversion stages required and provides ride-through capability during voltage sag and swells from the grid. However, the performance of q-ZSI in DC DPS under varying sources and load conditions has not previously been investigated. We present analysis and simulation of 400V DC DPS by placing q-ZSI converters in parallel under widely varying input and output conditions. An automatic master-slave control strategy was used to share the load current among parallel converters. The results verify the benefit of q-ZSI converters in DC DPS and show that DC DPS can have good transient and steady state response and is capable of maintaining stiff DC voltage at the common bus with minimal interaction. © 2013 IEEE.

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http://hdl.handle.net/10453/120151